Improvement in retorts for distilling oil from coal



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PATENT OFFICE.

WILLIAM G. W. JAEGER, OF BALTIMORE, MARYLAND.

Specification forming part of Letters Patent NM2/1,2! 7, dated May 3l, 1859.

To all whom it may concern.:

Be it known that I, WM. G. W. JAEGER, of Baltimore, in the county of Baltimore and State of Maryland, have invented an Improvement in Distilling Ooal-Oil; and I do hereby declare that the following is a full, clear, and exact description of the principle or character which distinguishes it from all other things before known, and of the usual manner of making, modifying, and using the same, reference being had to the accompanying drawings, of which- Figure l is a side elevation of the retort; Fig. 2, a plan of the bottom of the same; `Fig. 3, a vertical middle section, Fig. 4, an end View.

My invention consists in certain improvements in'distilling coal-oi1,described and represented as follows:

In the process of distilling oil from coal in is found that while the lighter oils are set free and evaporated through the condensing-worm at a certain temperature the heavier oil remains in the retort unevaporated, and if retained there (until the coal in the retort is thoroughly coked and all the oil extracted) it becomes burned, thus not only wasting a por tion of the oil, but also injuring the character of what is evaporated through the condensing-worm, and hence, in order to save this heavier oil from such waste,as well as prevent the burned vapor 'thereof from passing over with the lighter oils,it becomes necessary that this heavier oil should be removed from the retort as it is formed, instead of allowing it to remain there and be burned, as above stated. I make the retort of a peculiar form. (Shown in Figs. 1, 2, 8, and 4.) rIhe bottom a of the retort is inclined from the horizontal line lengthwise, as shown in Fig.. l, for the purpose of allowing the heavy oils to settle toward the end b, where they are to be drawn off. The bottom is also of arched form, as

clearly shown in Figs. y3 and 4, so as to give .so as to form traps, and the pipes maybe opened and closed by stop-cocks, plugs, or any suitable means. The beak of the retort z is placed at or near the middle of its length, and the upper walls are inclined upward toward the bealgby which means the vapor passes out,

with freedom and without detention in the retort as soon as it is formed. The three inclinations of the bottom of the retort have the effect to remove the heavy oils as soon as formed from the hotter parts of the retort,

and, if necessary, the channels d d may be subjected to cooling inliuences to prevent decomposition.

I do not confine myself to the precise means of separating the heavy and light oils, although I prefer those set forth. My improvement consists in separating them or removing the heavy' oils away from the action of the re, so as to prevent their decomposition.

The opening g is for the purpose of stirring the coal when required.

lVhat I claim is- 1. The side channels, d d, and the trap-opening or .discharge pipes e e, for the heavy oils, as set forth.

2. In combination with said side channels, the double inclination or arched form of the bottom of the retort.

3. In combination with the coal-oil retort constructed substantially as above set forth, the opening g, for the purposes set forth.

WM. G. NV. JAEGER.

Witnesses:

CHAs. G. PAGE, WM. H. HARRISON. 

